update-example-images.sh
#!/usr/bin/env bash

if ! command -v asciinema &> /dev/null; then
    echo "Command 'asciinema' not found. Please install and put on path."
    exit
fi
if ! command -v agg &> /dev/null; then
    echo "Command 'agg' not found. Please install and put on path."
    exit
fi

set -e

REPO_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"

# Ensure sample binaries are available
"$REPO_DIR/gradlew" -q --console plain -p "$REPO_DIR" installDist installJvmDist

for sample in $REPO_DIR/samples/*; do
	sample_name=$(basename "$sample")

	sample_bin="$sample/build/install/$sample_name/bin/$sample_name"
	if [ ! -f "$sample_bin" ]; then
		sample_bin="$sample/build/install/$sample_name-jvm/bin/$sample_name"
	fi
	if [ ! -f "$sample_bin" ]; then
		echo "Skipping $sample_name…"
		continue
	fi
	echo "Capturing $sample_name…"

	command="'$sample_bin' 2>/dev/null && sleep 2 && printf ' \e[D'"
	if [ -f "$sample/input.sh" ]; then
		command="'$sample/input.sh' | $command"
	fi

	echo "Running $command..."
	rm -f $sample/demo.cast
	asciinema rec -c "$command" $sample/demo.cast
	agg --cols 60 --rows 18 $sample/demo.cast $sample/demo.gif
	rm $sample/demo.cast
done

echo "Done"
